We use google moderator for feature requests for the android app that I am working on. It’s pretty simple but provides a decent way for people to suggest ideas and have the community vote on topics. Personally I would like it if it also had polls and a few other features but for the most part it’s quick, easy and free to use.
Might be good use for public polls on property, projects, etc.
I was just checking it for my project and thought it might be of use here as well.